Fergie running exercise sunglasses baby mom

She's working it out!

Over the weekend, Fergie and her personal trainer did some overtime in the Pacific Palisades in her attempt to get her pre-baby body back.

The Black Eyed Peas singer has been putting in extra work in the fitness department since the birth of her son Axl Rose and it's clear to see that her determination is stronger than ever!

Fergie running exercise sunglasses baby mom